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Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

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Old 12-31-2011, 05:26 AM   #1
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Default Phase 3 F-16 speed wanted

I purchased a (Airplane only) Phase 3 F-16, put a 4400kv Dons wicked motor and a fan that was balanced by him... I am running an 80 amp esc and 4s 3300 batt... ship is glassed, tail is beefed up, and it flies real nice... but too slow... doppler around 110-115... I wanna go faster... any suggestions? would like to keep the 4s batt if possible, but would like to hear if anyone has info on a Fan/Motor combo that would kick it up a notch using the 4s Battery.
regards,
Joe Casey
Naples Fl
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Old 12-31-2011, 07:11 AM   #2
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Joe,

Try a HET 6904 and a 2W-20 motor. It pushed my Phase 3 Squall to 115. It's heavier than the F-16, so you could probably get at least 125 with that setup and the 4S 3300.

PS - I lived in Naples from 99-03. Miss it.

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Old 12-31-2011, 01:19 PM   #3
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Default phase 3 F-16 speed wanted

thanks for the reply Crxmanpat. I was looking at the Fanjetusa site, and saw that the 1W-30 motors spin up to 65000 on 100 amps... would that be a better choice?
TIA Joe Casey
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Old 12-31-2011, 01:24 PM   #4
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Default Phase 3 F-16

How are these guys able to push the Foamy Phase 3 F-16 to speeds in the 175 to 200 mph range?
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Old 01-02-2012, 03:49 AM   #5
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just my opinion, but if your looking to go 175, maybe the phase 3 f-16 isn't the best airframe to get there with.flying that fast with just tailerons is gonna put a lot of stress on the rear of the airframe, possibly tearing it off in flight when subjected to high g turns that are inevitable when scooting around at that speed.....the phase 3 f-16 is a great jet at 80 to 90 mph, but 175??? yikes!

e.d.f. speed freak
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Old 01-02-2012, 04:00 AM   #6
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Default Phase 3 F-16 (200+MPH)

I see u tube videos of the Phase 3 F-16 goin 205... they beef up the tail, and counterbalance the elevons to keep em in one piece... my question is what motor/fan/batt are they runnin
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Old 01-02-2012, 07:21 PM   #7
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Try the rcgroups forum as this model has been discussed at length.
As for 200mph, it might be a stretch!
My stock F16 does 75 and for its size gets small fast enough.
Cheers
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Old 01-02-2012, 07:42 PM   #8
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Casey,
have you ever heard the expression "putting a $50 saddle on a $5 horse"??
that's exactly what a 200 mph phase 3 f-16 is. if that airframe can take 5 flights without destroying itself at that speed, i would be surprised. it can and has been done, but if your looking for a fast bird that's gonna be around for more than a few flights, then a $65 foam airframe ain't the way to go.
just I.M.H.O. this is my Phase 3 F-16..... at 90 m.p.h. she's rockin'


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Old 10-18-2012, 11:32 PM   #9
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Old 10-20-2012, 01:50 AM   #10
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i fly mine plain ol stock...but it will still boogie !


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Old 10-20-2012, 12:44 PM   #11
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These are just thoughts and not actual ... (based on my hotting up my various EDF's)

a) Remove the taileron function and replace with aileron and elevator split .. to reduce load on those elevators.
b) Look at as high a C rated pack as you can ... the motor needs to 'breathe' ....
c) Look at a higher KV motor with same fan or a lesser KV motor with greater blade fan / more pitch
d) Clean up ducting and reduce to the recc'd size exhaust ..
e) Clean up and remove all appendages on exterior of airframe and certainly NO WHEELS or legs !

Let her rip and see what you get now ...

What you have to appreciate is that at about 130kph ... you hit a wall with most EDF's that is then very hard to break ... and each step up from that is harder and harder with greater amount of energy / effort neded per kph as it gets higher. It's not linear or easy. It really gets hard.

My pusher jet does over 220kph .. but it needs 3x the power than when it did 170kph .... at 170kph it needed 2x the power of the 130kph ...

The other factor is run-time will drastically fall as you go higher ..

Get my point ?

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Old 10-20-2012, 01:12 PM   #12
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Originally Posted by iflyrc1012 View Post
Casey,
have you ever heard the expression "putting a $50 saddle on a $5 horse"??
that's exactly what a 200 mph phase 3 f-16 is. if that airframe can take 5 flights without destroying itself at that speed, i would be surprised. it can and has been done, but if your looking for a fast bird that's gonna be around for more than a few flights, then a $65 foam airframe ain't the way to go.
just I.M.H.O. this is my Phase 3 F-16..... at 90 m.p.h. she's rockin'
It's been a while friend. What poweplant do you have in her?

Mike

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Old 10-21-2012, 12:06 AM   #13
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hey Mike!!! how have you been bud?... my phase 3 is still spinning the same stock fan and motor she came with on 3 cell 2200 30c battery...i don't fly her a lot anymore, but when there is a club event, or a funfly, and i want to show off a bit, that's still one of the planes i bring for sure!!!

e.d.f. speed freak
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Old 10-22-2012, 01:28 PM   #14
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Originally Posted by iflyrc1012 View Post
hey Mike!!! how have you been bud?... my phase 3 is still spinning the same stock fan and motor she came with on 3 cell 2200 30c battery...i don't fly her a lot anymore, but when there is a club event, or a funfly, and i want to show off a bit, that's still one of the planes i bring for sure!!!
Doing well man. Been busy looking for a new place. Been a while since I've flown anything. I want to get another Phase III F-16. I too flew mine on the stock setup and thought she was plenty fast enough for me. Wouldn't mind having a small fleet of these birds, lol.

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Old 10-22-2012, 09:03 PM   #15
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Originally Posted by jmcasey View Post
How are these guys able to push the Foamy Phase 3 F-16 to speeds in the 175 to 200 mph range?
Yeah, the mathematics shows that doubling the speed takes 8 times more watts.

Several of my club members have put speed indicators on their foamie jets, one hit 97 MPH, the other hit 107 MPH. Believe me, a small size foamie jet pulling some 65 amps out of the 3S battery gets very small very fast.

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Old 10-22-2012, 11:29 PM   #16
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one of my club buddies has a 70mm fan and a 4 cell 2200 in his... it has about 50 flights on it, but its getting close to retirement...either that or he will blow the tail off it....

e.d.f. speed freak
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Old 10-23-2012, 02:14 AM   #17
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Originally Posted by kyleservicetech View Post
Yeah, the mathematics shows that doubling the speed takes 8 times more watts.

Several of my club members have put speed indicators on their foamie jets, one hit 97 MPH, the other hit 107 MPH. Believe me, a small size foamie jet pulling some 65 amps out of the 3S battery gets very small very fast.
Aint that the truth !! Not only that - but packs even extreme high C rate packs don't survive the abuse too long.

But once sorted and up in the speed ... the buzz you get from flying is IMHO really worth it.

Nigel

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